rotations

英 [rəʊˈteɪʃənz]

美 [roʊˈteɪʃənz]

n.  旋转; 转动; (旋转的)一周，一圈; 轮换; 交替; 换班
rotation的复数

柯林斯词典

• N-VAR 旋转;转动
  Rotationis circular movement. Arotationis the movement of something through one complete circle.
  1. ...the daily rotation of the earth upon its axis.
     地球每天绕地轴自转
• N-UNCOUNT 轮流;轮班
  Therotationof a group of things or people is the fact of them taking turns to do a particular job or serve a particular purpose. If people do somethingin rotation, they take turns to do it.
  1. He grew a different crop on the same field five years in a row, what researchers call crop rotation...
     他连续5年在同一块地里种植不同的作物，研究人员称之为轮作。
  2. Once a month we met for the whole day, and in rotation each one led the group.
     我们每个月聚在一起一整天，轮流担任领队。

双语例句

• We must establish crop rotations which will help to minimize disease.
  我们必须建立有助于减少疾病的作物轮作制。
• Crop rotations with legumes help maintain fertility and soil microbiology.
  与豆类轮作可以保持土壤的肥力和微生态。
• The crankshaft makes three rotations for each rotation of the rotor.
  转子每转一周，曲轴转3周。
• The symmetry of the circle, the square, and the face are associated with rotations or inversions in space.
  圆、正方形和人脸的对称与空间的转动和交换有关。
• I commenced my clinical rotations excited to discover my niche within medicine and decipher my interests and strengths.
  我开始着手一边享受医学给我带来的兴奋一边寻找我自己的兴趣和强项所在。
• This new tag is a graphics canvas on which you can draw lines and rectangles, place images, perform rotations, and more.
  这种新标记是一个画布，可以在其上绘制直线和矩形、放置图片、进行旋转等。
• For geophysical purposes it is customary to use solar rotations of 27. 0 day.
  为适应地球物理学的需要，习惯上以27.0日为太阳自转周期。
• Increase the number of rotations per minute.
  加快每分钟转动的次数。
• All the physical properties should be identical except for the optical rotations of the two isomers ( enantiomers), which are of opposite sign.
  这两个异构体（对映体）除了旋光度有相反的符号之外，其他所有的物理性质都应该是完全相同的。
• Rotations, if it's a diatomic molecule, will be two different degrees of freedom.
  对于双原子分子，转动有两个不同的自由度。